Dan and Ellen Mueller both recently retired from Mayo Clinic after having each worked there for more than 40 years. Dan said that the couple's extended family has probably put in more than 500 years of service at Mayo with family members working in a variety of different jobs. "My parents actually met at St. Marys," said Dan. The two are pictured outside their home on Tuesday, June 2, 2020, in Rochester. (Joe Ahlquist /
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